code: def test_offset():
      crs = ccrs.Aitoff()
      crs_offset = ccrs.Aitoff(false_easting=1234, false_northing=-4321)
      other_args = {"a=6378137.0", "lon_0=0", "x_0=1234", "y_0=-4321"}
      check_proj_params("aitoff", crs_offset, other_args)
      assert tuple(np.array(crs.x_limits) + 1234) == crs_offset.x_limits
      assert tuple(np.array(crs.y_limits) - 4321) == crs_offset.y_limits
  
file_path: cartopy/lib/cartopy/tests/crs/test_aitoff.py
imports: import numpy
  from numpy.testing import assert_almost_equal
  import pytest
  import cartopy.crs
  from .helpers import check_proj_params
label_desc: Use image node_id 5 for calling a global function with example usage: test_offset() without return types